Depending on the vehicle, the AIR system may supply air at different times to the exhaust manifolds, the catalytic converter, or both. The additional air aids in the oxidation of harmful exhaust gases. When air is introduced into the exhaust manifolds, the catalytic converter warms up faster.
A typical AIR system's primary components are as follows:
· Air pump (electric or engine-powered): Provides air to the AIR system.
· Solenoid and valves for air management: Air should be directed to the Air Inject Check Valves, exhaust manifolds, and catalytic converter. There could also be valves that direct air to the outside.
· Valve check: Prevent the accumulation of hot exhaust gases in the AIR system.
· Plumbing requirements (hoses and pipes): Connect the various AIR components.
· Powertrain control module (PCM): Controls the air management solenoids and monitors the operation of the AIR system.
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